BaseFortify

Publication date: 2025-12-19

Last updated on: 2025-12-23

Assigner: Foxit

Description

A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Predefined Text feature of the Foxit eSign section. A crafted payload can be stored via the Identity “First Name” field, which is later rendered into the DOM without proper sanitization. As a result, the injected script may execute when predefined text is used or when viewing document properties.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2025-12-19

Last Modified

2025-12-23

Generated

2026-07-06

AI Q&A

2025-12-19

EPSS Evaluated

2026-07-05

NVD

CVE-2025-66501

Affected Vendors & Products

Vendor	Product	Version / Range
foxit	pdf_editor_cloud	to 2025-12-01 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in the Foxit eSign section of pdfonline.foxit.com. It occurs in the Predefined Text feature where an attacker can insert a malicious script payload into the Identity 'First Name' field. This payload is stored and later rendered into the web page's DOM without proper sanitization, allowing the script to execute when predefined text is used or when viewing document properties.

Impact Analysis

The vulnerability can allow an attacker to execute malicious scripts in the context of the affected web application. This can lead to unauthorized actions such as stealing user session data, defacing content, or performing actions on behalf of the user, potentially compromising user data confidentiality and integrity.

Hi! I’m here to help you understand CVE-2025-66501. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70